Proton conductive cationic nanoporous polymers based on smectic liquid crystal hydrogen-bonded heterodimers

The fabrication of a cationic nanoporous smectic liquid crystal network (LCN) based on hydrogen bonded heterodimers is presented. The method relies on a supramolecular complex made from a pyridyl bearing reactive mesogen hydrogen bonded to a non-reactive benzoic acid template. Upon addition of a cro...

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Published inJournal of materials chemistry. C, Materials for optical and electronic devices Vol. 6; no. 18; pp. 5018 - 5024
Main Authors Mulder, Dirk-Jan, Liang, Ting, Xu, Yifei, ter Schiphorst, Jeroen, Scheres, Luc M. W., Oosterlaken, Bernette M., Borneman, Zandrie, Nijmeijer, Kitty, Schenning, Albertus P. H. J.
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 2018
Subjects
Benzoic acid
Cationic polymerization
Crosslinking
Hydrogen
Hydrogen bonding
Lamellar structure
Liquid crystals
Photopolymerization
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Summary:The fabrication of a cationic nanoporous smectic liquid crystal network (LCN) based on hydrogen bonded heterodimers is presented. The method relies on a supramolecular complex made from a pyridyl bearing reactive mesogen hydrogen bonded to a non-reactive benzoic acid template. Upon addition of a cross-linker, a smectic liquid crystalline phase is obtained that can be fixed by photopolymerization. It was found that the lamellar structure was maintained after template removal when 25 wt% or more cross-linker was used, yielding a nanoporous LCN. After H 3 PO 4 immobilization in the pores of the LCN, a cationic 2D nanoporous polymer is obtained showing high and anisotropic anhydrous proton conductivity.
ISSN:2050-7526
2050-7534
DOI:10.1039/C8TC00857D